FMG3AT148

Overview

The FMG3AT148 is a dual NPN digital transistor from the ROHM Semiconductor FMG3A series, housed in an SOT-25-5 (SMT5) surface-mount package. It integrates two NPN transistors with typical base resistors of 4.7 kOhms each. Key electrical parameters include a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA. The device features a minimum DC current gain (hFE) of 100 at 1 mA and 5 V, with a maximum operating frequency of 250 MHz. Power dissipation is rated at 300 mW, and the junction temperature range extends up to +150 C.

Feature Summary

• Integrates dual NPN transistors with built-in biasing resistors for simplified circuit design
• Optimized for high-speed switching applications with a maximum operating frequency of 250 MHz
• Compact SOT-25-5 surface-mount package suitable for space-constrained designs

Applications

• General-purpose switching circuits
• Driver circuits for logic interfaces
• Signal level shifting applications

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate tape-and-reel packaging quantities. Ensure storage conditions adhere to moisture sensitivity levels defined in the datasheet to prevent package damage during soldering processes.

Selection Notes

Select this component when dual NPN switching with integrated base resistors is required. The 4.7 kOhm input resistance suits standard logic drive levels. Compare hFE requirements against load currents to ensure adequate saturation. Consider the 50 V VCEO rating relative to supply voltages and transient spikes in the target application environment.

Part Context

The FMG3AT148 belongs to the FMG3A family of pre-biased transistors designed to replace discrete resistor-transistor networks. This series aims to reduce board space and assembly costs by combining active and passive components into a single semiconductor die within a standardized small outline transistor footprint.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical parameter equivalence before considering alternative manufacturers' equivalents.